41247421 has 2 divisors, whose sum is σ = 41247422. Its totient is φ = 41247420.

The previous prime is 41247419. The next prime is 41247443. The reversal of 41247421 is 12474214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24552025 + 16695396 = 4955^2 + 4086^2 .

It is a cyclic number.

It is not a de Polignac number, because 41247421 - 2¹ = 41247419 is a prime.

Together with 41247419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41247221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20623710 + 20623711.

It is an arithmetic number, because the mean of its divisors is an integer number (20623711).

Almost surely, 2^41247421 is an apocalyptic number.

It is an amenable number.

41247421 is a deficient number, since it is larger than the sum of its proper divisors (1).

41247421 is an equidigital number, since it uses as much as digits as its factorization.

41247421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1792, while the sum is 25.

The square root of 41247421 is about 6422.4155113166. The cubic root of 41247421 is about 345.5139605499.

The spelling of 41247421 in words is "forty-one million, two hundred forty-seven thousand, four hundred twenty-one".